The UN needs a coordinated approach to assist people forced to move by floods, storms, drought and other impacts worsened by global warming, an expert panel has found.

In a report released this week, the ‘task force on displacement’ called for better data collection and analysis on climate migration trends, and finance to help those hardest hit.

“The UN currently lacks a system-wide lead, coordination mechanism, or strategy on disaster displacement, including related to climate change,” wrote the authors, who mostly represent UN agencies. They called on secretary general Antonio Guterres to develop a response.

A growing body of research shows how the strains of a changing climate can prompt people to leave their homes. Their journeys may be triggered by an acute disaster like an extreme storm or chronic problems like frequent drought making farming unprofitable.

At a climate action summit in California last week, Mohammad Sayeed Khokon, mayor of Dhaka South City Corporation said he was dealing with a dramatic influx of people.

As a low-lying and densely populated country, Bangladesh is vulnerable to flooding, sea level rise and tropical cyclones, which bear the fingerprints of climate change.

“A lot of the people affected from the rural areas, they migrate to the cities, they live on the streets of the cities. It is one of the big challenges for us to take care of those people who are homeless, who are not employed and living a really very hard life,” Khokon told reporters.

As mayor, he is building social housing and trying to provide services, Khokon said, adding: “We need your support; we need your attention.”

What happens in the next few months will impact the future of the Paris Agreement and the global climate

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